diff --git a/mock/store.go b/mock/store.go
new file mode 100644
index 000000000..f7844e668
--- /dev/null
+++ b/mock/store.go
@@ -0,0 +1,104 @@
+package mock
+
+import (
+	dbm "github.com/tendermint/tmlibs/db"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+type multiStore struct {
+	kv map[sdk.StoreKey]kvStore
+}
+
+func (ms multiStore) CacheMultiStore() sdk.CacheMultiStore {
+	panic("not implemented")
+}
+
+func (ms multiStore) CacheWrap() sdk.CacheWrap {
+	panic("not implemented")
+}
+
+func (ms multiStore) Commit() sdk.CommitID {
+	panic("not implemented")
+}
+
+func (ms multiStore) LastCommitID() sdk.CommitID {
+	panic("not implemented")
+}
+
+func (ms multiStore) GetCommitKVStore(key sdk.StoreKey) sdk.CommitKVStore {
+	panic("not implemented")
+}
+
+func (ms multiStore) GetCommitStore(key sdk.StoreKey) sdk.CommitStore {
+	panic("not implemented")
+}
+
+func (ms multiStore) MountStoreWithDB(key sdk.StoreKey, typ sdk.StoreType, db dbm.DB) {
+	ms.kv[key] = kvStore{store: make(map[string][]byte)}
+}
+
+func (ms multiStore) LoadLatestVersion() error {
+	return nil
+}
+
+func (md multiStore) LoadVersion(ver int64) error {
+	panic("not implemented")
+}
+
+func (ms multiStore) GetKVStore(key sdk.StoreKey) sdk.KVStore {
+	return ms.kv[key]
+}
+
+func (ms multiStore) GetStore(key sdk.StoreKey) sdk.Store {
+	panic("not implemented")
+}
+
+func (ms multiStore) GetStoreType() sdk.StoreType {
+	panic("not implemented")
+}
+
+type kvStore struct {
+	store map[string][]byte
+}
+
+func (kv kvStore) CacheWrap() sdk.CacheWrap {
+	panic("not implemented")
+}
+
+func (kv kvStore) GetStoreType() sdk.StoreType {
+	panic("not implemented")
+}
+
+func (kv kvStore) Get(key []byte) []byte {
+	v, ok := kv.store[string(key)]
+	if !ok {
+		return nil
+	}
+	return v
+}
+
+func (kv kvStore) Has(key []byte) bool {
+	_, ok := kv.store[string(key)]
+	return ok
+}
+
+func (kv kvStore) Set(key, value []byte) {
+	kv.store[string(key)] = value
+}
+
+func (kv kvStore) Delete(key []byte) {
+	delete(kv.store, string(key))
+}
+
+func (kv kvStore) Iterator(start, end []byte) sdk.Iterator {
+	panic("not implemented")
+}
+
+func (kv kvStore) ReverseIterator(start, end []byte) sdk.Iterator {
+	panic("not implemented")
+}
+
+func NewCommitMultiStore(db dbm.DB) sdk.CommitMultiStore {
+	return multiStore{kv: make(map[sdk.StoreKey]kvStore)}
+}
diff --git a/types/stdlib/stdlib_test.go b/types/stdlib/stdlib_test.go
index 25caa34fe..a225f148e 100644
--- a/types/stdlib/stdlib_test.go
+++ b/types/stdlib/stdlib_test.go
@@ -9,7 +9,7 @@ import (
 
 	abci "github.com/tendermint/abci/types"
 
-	"github.com/cosmos/cosmos-sdk/store"
+	store "github.com/cosmos/cosmos-sdk/mock"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	wire "github.com/cosmos/cosmos-sdk/wire"
 )